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Multiuser detection for DS-CDMA systems using evolutionary programming

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4 Author(s)
Lim, H.S. ; Fac. of Eng. & Technol., Multimedia Univ., Melaka, Malaysia ; Rao, M.V.C. ; Tan, A.W.C. ; Chuah, H.T.

This article introduces a new multiuser detection scheme which uses evolutionary programming (EP) to detect the user bits based on the maximum-likelihood decision rule. The major advantage of the proposed detector is that it has a lower computational complexity compared to other popular evolutionary-algorithm-based detectors. The simulation results show that the EP has always converged to the optimum solution with a small number of generations. The simulated average computational time performance demonstrates that this approach achieves practical ML performance with polynomial complexity in the number of users.

Published in:

Communications Letters, IEEE  (Volume:7 ,  Issue: 3 )